Cultivator.



its object is to provide a device of this char- UNTTEI) STATES PATENT OFFICE. MATTHEW HARRIS NTCHOLSON, OF TYLER, TEXAS, ASSIGNOR TO EUGENE ROSENBAUM, OF DALLAS, TEXAS.

CULTIVATOR.

No. 841,171. Specification of Letters Patent. Patented Jan. 15, 1907.

l Application filed September 26, 1906. Serial No. 336,379.

To @ZZ 'whom t may concern: I times by the teeth, and as the strips extend- 55 Be it known that I, MATTHEW HARRIS ing to the left of the beam are separate from NICHOLSON, a citizen of the United States, the strips extending to the right thereof it is residing at Tyler, in the county of Smith and obvious that the teeth at the two sides of the State of Texas, have invented a new and uset beam can be independently adjusted. One ful Qultivator, of whichA the following is a j of the teeth 13 is held in place solely by the 6o specification. \bolts 5 and 9 and is disposed directly under This invention relates to cultivators; and the beam. This tooth is not, therefore, adjustable. A link 14 is pivoted to the strip 10 and another link 15 to the strip 11, and the inner ends of these links ride upon the plate 6 5 3 and have upturned ears 16, adapted to bear against opposite faces of the beam 1. Levers 17 and 18 are fulcrumed upon opposite sides ofthe beam 1, and a rod 19 connects the lever 18 with link 14, while another rod 2O 7o connects lever 17 with link 15. The 'forward ends of these rods project downward through acter having oppositely-disposed series of teeth, said series being independently adjustable in relation to the beam of the cultivator and having means whereby the adjustment can be quickly and easily effected.

A still further object is to provide simple means for locking the teeth in adjusted position.

With the above and other objects in view the invention consists of certain novel feathe slots 4 and have means thereon, such as tures ofconstruction and combinations of Cotter-keys 21, for preventing the rods from parts, which will be hereinafter more fully j being withdrawn from the slots. Toothed 75 described, and pointed out in the claims. segments 22 are mounted on the beams, one

In the accompanying drawings is shown being provided for each lever 17 and 18, and the preferred formof the invention. a spring-pressed dog 23 is carried by each In said drawings, Figure lis a plan view of lever and adapted to engage a segment, so as the CultiVatQI,SllOWiIlg 111 Jllll liIleS 011e Of the t0 100k the lever in any position t0 which it 8o positions which may be assumed by the may be adjusted. teeth and another position being shown by It will be seen that by constructing a culdotted lines; and Fig. 2 is a longitudinal tivator in the manner herein described either section through the cultivator, parts thereof the right or the left series of teeth may be being broken away. adjusted forward or backward simply by 8 5 Referring to the figures by characters of i manipulating the proper lever. The two reference, 1 is the beam of the cultivator, series of teeth may be arranged as shown having handles 2 extending from the rear in full and dotted lines in Fig. 1, or said posiend thereof, while secured to the bottom of tions may be reversed. The adjustment is the beam is a guidelate 3, having longiquickly effected by means of the levers, and 9o tudinally-extending s ots 11 therein, one slot when the parts have once .been adjusted being disposed at each side ofthe beam. A kthey are securely locked by means of the pivot-bolt 5 extends through the beam, and dogs and segments. Importance is attached mounted thereon are the overlapping ends of to the fact that the rods 19 and 2O not only front cross-strips 6 and 7, extending laterserve to transmit motion from the levers to 95 ally in o posite directions from the beam. the links, but also hold the links in position Each of t ese cross-strips has a brace 8 fasupon the plate 3 and prevent the parts from tened to it, and the two braces overlap above` becoming displaced. By providing the upthe beam land are pivotally mounted on the turned ears 16 the links are prevented from upper ortion of the bolt 5. Another bolt 9 biting into the beam during the adjustment ioo exten s through the beam in rear of the bolt of the cultivator.

5, and pivoted thereon are oppositely-ex- What is claimed istending cross-strips 10 and 11 the ends vof 1. In a cultivator the combination with a which overlap. The cross-strips 6, 7, 10, and beam; of a pair of cross-strips pivotally con- 11 are connected by parallel teeth 12, said nected to the beam, a series of teeth pivoted 1o 5 teeth being pivoted to the cross-strips at to the cross-strips, a longitudinally-slotted their points of intersection therewith. Said guide-plate secured to the beam, a link pivcross-strips are maintained parallel at all oted to one of the cross-strips and slidably p a series of teeth pivoted mounted on the guide-plate, means for actuating the link, and means extending from the link and into the slotted plate for retaining the link upon the plate.

2. In a eultivator the combination With a I beam; of oppositely-extending cross-strips pivotally Connected thereto, a series of teeth pivoted to the Cross-strips and maintained in Jxed relation thereby, a guide carried by the beam, links slidably mounted upon the guide and pivoted to the cross-strips, independent means for sliding the links upon the guide, and retaining devices extending from the links and engaging the guide.

3. In a eultivator the combination With a beam; of oppositely extending pairs of cross-strips pivotally connected to the beam,

to each pair of crossstrips, a longitudinally slotted guide se.- eured to the beam, links pivoted to the pairs of oross-strps and slidably mounted on the guide, actuating-levers, and rods connecting said levers and the links, said rods extending through the slots and constituting retaining means for 'the links.

4. In a eultivator the combination withl a beam; of oppositely extending pairs of cross-strips pivotally connected to the beam, a series of teeth pivoted to each pair of cross- I strips,`a longitudinally-slotted guide secured Cross-strips and to the beam, links slidably mounted on the guide, actuating-levers, rods connecting said levers and the links, said rods extending through the slots and constituting retaining means for the links, and means for looking the levers in adjusted position. In testimony that I claim the foregoing as my own I have hereto ailixed my signature in the presence of two Witnesses.

MATTHEW HARRIS NICHOLSON. Witnesses: W. J. SINGLETARY, J. W. BEAIRD.

pivoted .to the pairs of 

